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\multicolumn{3}{c}{Impact of treatment assignment on standardized test scores} \\ \hline
 & (1) & (2) \\
VARIABLES & std\_total\_score\_exm & std\_total\_score\_exm \\ \hline
 &  &  \\
treatment & -0.03 & -0.03 \\
 & (0.02) & (0.02) \\
AGE &  & 0.00 \\
 &  & (0.01) \\
female &  & -0.03 \\
 &  & (0.02) \\
subject\_count &  & -0.05* \\
 &  & (0.03) \\
std\_AGG\_mock & 0.82*** & 0.82*** \\
 & (0.02) & (0.02) \\
Constant & -0.17*** & 0.27 \\
 & (0.03) & (0.31) \\
 &  &  \\
Observations & 731 & 729 \\
 R-squared & 0.88 & 0.88 \\ \hline
\multicolumn{3}{c}{ Robust standard errors in parentheses} \\
\multicolumn{3}{c}{ *** p$<$0.01, ** p$<$0.05, * p$<$0.1} \\
\end{tabular}
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